Singh S, Singh V, Mishra P. Effect of NPK, boron and zinc on productivity and profitability of late sown kharif maize (Zea mays L.) in western Uttar Pradesh, India. AAR [Internet]. 2018 Apr. 19 [cited 2026 Jun. 27];38(3). Available from: https://epubs.icar.org.in/index.php/AAR/article/view/78974